Like the Gen 6, the Gen 7 is a CQB stock built for comfort and durability for real-world use. No buttons to push, just pull the stock to deploy. At its most collapsed position, this CQB stock only adds 5.35” to your AR15. At full extension, the Maxim CQB stock is the length of an extended carbine stock. And with 4 total positions you can adjust for maximum comfort and multiple scenarios. Rapid deployment, purpose driven materials, and the functionality you need, the Maxim Defense CQB Stock is simply the most thought out, versatile, and durable CQB stock on the market. The Gen 7 is for those who want a sleeker profile, eliminating the side sling swivel attachment points from the housing. Instead, the Gen 7 comes with our ambidextrous sling mount already installed. Built for duty • Rapid deployment • 5 different buffer options • Interchangeable stocks • Full auto compatible SpecificationsWeight: 18.5 ouncesMaterial: 7075 Aluminum Alloy housingLength:5.3 inches closed6.8 inches 1st position8.3 inches 2nd position10 inches fully extendedCaliber: MultiFinish: MILSPEC AnodizedBuffer options: Standard, H1, H2, H3, 9mm PCC, (JP Silent Captured Spring system – proprietary to Maxim CQB stock) Notes:• Works on all AR15 platforms• Keep your existing bolt carrier group FeaturesRapid deploymentDecreases overall length of PDW’sCompatible with standard MILSPEC BCGExtended cheek weldEasily installs on MILSPEC AR15 lowersInterchangeable buttstock assembliesMilitary grade materials